Home / 27,172.87-40,776.62-12,383.28

Finding the Fourth Proportional to 27,172.87, 40,776.62 and 12,383.28

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Solution

The fourth proportional to 27,172.87, 40,776.62 and 12,383.28 is: 18,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,172.87 : 40,776.62 = 12,383.28 : x
  2. Step 2: Convert to fraction form
    27,172.87/40,776.62 = 12,383.28/x
  3. Step 3: Cross multiply
    27,172.87x = 40,776.62 × 12,383.28
  4. Step 4: Simplify right side
    27,172.87x = 504,948,241.00
  5. Step 5: Solve for x
    x = 504,948,241.00/27,172.87
  6. Step 6: Final answer
    x = 18,582.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.